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Table 2 Spearman’s correlations between fecal calprotectin and parameters reflecting disease activity and physical function at baseline and 5-year follow-up

From: A longitudinal study of fecal calprotectin and the development of inflammatory bowel disease in ankylosing spondylitis

  CRP ESR ASDASCRP BASDAI BASFI BASMI
Baseline 5-year follow-up Baseline 5-year follow-up Baseline 5-year follow-up Baseline 5-year follow-up Baseline 5-year follow-up Baseline 5-year follow-up
FC Baseline 0.280 0.209 0.222 0.169 0.260 0.240 0.190 N.S. 0.166 0.166 N.S. N.S.
p-value  < 0.001 p = 0.007 p = 0.004 p = 0.031 p = 0.001 p = 0.002 p = 0.016 p = 0.034 p = 0.034
FC 5-year N.S. 0.219 N.S. 0.172 N.S. 0.207 N.S. N.S. N.S. 0.154 N.S. 0.207
p-value p = 0.005 p = 0.027 p = 0.008 p = 0.048 p = 0.008
  1. Abbreviations: CRP C-reactive protein, ESR Erythrocyte sedimentation rate, ASDAS CRP Ankylosing Spondylitis Disease Activity Score based on C-reactive protein, BASDAI Bath Ankylosing Spondylitis Disease Activity Index, BASFI Bath Ankylosing Spondylitis Functional Index, BASMI Bath Ankylosing Spondylitis Metrology Index, FC fecal calprotectin